EP0481667A3 - - Google Patents

Download PDF

Info

Publication number
EP0481667A3
EP0481667A3 EP19910309269 EP91309269A EP0481667A3 EP 0481667 A3 EP0481667 A3 EP 0481667A3 EP 19910309269 EP19910309269 EP 19910309269 EP 91309269 A EP91309269 A EP 91309269A EP 0481667 A3 EP0481667 A3 EP 0481667A3
Authority
EP
European Patent Office
Prior art keywords
benzotriazole
tolyltriazole
mercaptotetrazole
mercaptobenzothiazole
azole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19910309269
Other languages
English (en)
Other versions
EP0481667B1 (fr
EP0481667A2 (fr
Inventor
Daniel P. Vanderpool
Susan P. Rey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Calgon Corp
Original Assignee
Calgon Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Calgon Corp filed Critical Calgon Corp
Publication of EP0481667A2 publication Critical patent/EP0481667A2/fr
Publication of EP0481667A3 publication Critical patent/EP0481667A3/xx
Application granted granted Critical
Publication of EP0481667B1 publication Critical patent/EP0481667B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F14/00—Inhibiting incrustation in apparatus for heating liquids for physical or chemical purposes
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
    • C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
EP91309269A 1990-10-15 1991-10-09 Compositions contenant un azole et un polyphosphate et leur utilisation comme inhibiteurs d'alliages de cuivre-nickel Expired - Lifetime EP0481667B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/597,634 US5141675A (en) 1990-10-15 1990-10-15 Novel polyphosphate/azole compositions and the use thereof as copper and copper alloy corrosion inhibitors
US597634 1990-10-15

Publications (3)

Publication Number Publication Date
EP0481667A2 EP0481667A2 (fr) 1992-04-22
EP0481667A3 true EP0481667A3 (fr) 1994-03-09
EP0481667B1 EP0481667B1 (fr) 1997-01-08

Family

ID=24392317

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91309269A Expired - Lifetime EP0481667B1 (fr) 1990-10-15 1991-10-09 Compositions contenant un azole et un polyphosphate et leur utilisation comme inhibiteurs d'alliages de cuivre-nickel

Country Status (8)

Country Link
US (1) US5141675A (fr)
EP (1) EP0481667B1 (fr)
JP (1) JP2736293B2 (fr)
KR (1) KR920008218A (fr)
AT (1) ATE147444T1 (fr)
AU (1) AU639835B2 (fr)
CA (1) CA2053157A1 (fr)
DE (1) DE69124057T2 (fr)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2902281B2 (ja) * 1993-11-24 1999-06-07 千代田ケミカル株式会社 水溶性金属防食剤
US5503775A (en) * 1994-05-09 1996-04-02 Nalco Chemical Company Method of preventing yellow metal corrosion in aqueous systems with superior corrosion performance in reduced environmental impact
EP0759818A4 (fr) 1994-05-13 1997-08-20 Henkel Corp Composition aqueuse destinee a former un revetement protecteur sur une surface metallique en produisant moins de taches et moins de corrosion, et utilisation de cette composition
US5888255A (en) * 1997-10-10 1999-03-30 Exxon Research And Engineering Co. Distillate fuel composition of reduced nickel corrosivity
US5874026A (en) * 1997-12-01 1999-02-23 Calgon Corporation Method of forming corrosion inhibiting films with hydrogenated benzotriazole derivatives
US6265667B1 (en) 1998-01-14 2001-07-24 Belden Wire & Cable Company Coaxial cable
EP0971049A1 (fr) * 1998-06-23 2000-01-12 BetzDearborn Inc Procédés d'inhibition de la corrosion utilisant des halo-benzotriazoles
US6585933B1 (en) 1999-05-03 2003-07-01 Betzdearborn, Inc. Method and composition for inhibiting corrosion in aqueous systems
US6379587B1 (en) 1999-05-03 2002-04-30 Betzdearborn Inc. Inhibition of corrosion in aqueous systems
US6187262B1 (en) * 1998-08-19 2001-02-13 Betzdearborn Inc. Inhibition of corrosion in aqueous systems
US6103144A (en) * 1999-04-12 2000-08-15 Betzdearborn Inc. Halogen resistant copper corrosion inhibitors
US7767009B2 (en) 2005-09-14 2010-08-03 OMG Electronic Chemicals, Inc. Solution and process for improving the solderability of a metal surface
US7883738B2 (en) * 2007-04-18 2011-02-08 Enthone Inc. Metallic surface enhancement
US10017863B2 (en) * 2007-06-21 2018-07-10 Joseph A. Abys Corrosion protection of bronzes
TWI453301B (zh) * 2007-11-08 2014-09-21 Enthone 浸鍍銀塗層上的自組分子
US7972655B2 (en) * 2007-11-21 2011-07-05 Enthone Inc. Anti-tarnish coatings
US7595000B2 (en) * 2008-02-21 2009-09-29 Prochamtech International, Inc. Operation of evaporative cooling towers with minimal or no blowdown
CN104060277A (zh) * 2013-03-20 2014-09-24 江苏核电有限公司 一种核电机组核岛设备冷却水系统加缓蚀剂的防腐蚀工艺
JP5864509B2 (ja) * 2013-10-17 2016-02-17 株式会社オートネットワーク技術研究所 油膜保持機能を有する組成物およびこれを用いた防食剤ならびに端子付き絶縁電線
JP5894133B2 (ja) * 2013-10-17 2016-03-23 株式会社オートネットワーク技術研究所 電気接続構造、及び電気接続構造の製造方法
US9530534B2 (en) 2015-04-03 2016-12-27 C3Nano Inc. Transparent conductive film
CN106400025A (zh) * 2016-10-09 2017-02-15 广西大学 一种高效镍合金缓蚀剂
WO2019135991A1 (fr) 2018-01-03 2019-07-11 Ecolab Usa Inc. Dérivés de benzotriazole comme inhibiteurs de corrosion
EP3762339B1 (fr) 2018-03-08 2024-06-12 BL Technologies, Inc. Procédés pour réduire les n-hétérocycles

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB771943A (en) * 1954-05-12 1957-04-10 Albright & Wilson Compositions for inhibiting corrosion of both cuprous and ferrous metals by aqueous solutions
GB865192A (en) * 1956-07-27 1961-04-12 Albright & Wilson Mfg Ltd Improvements in or relating to corrosion inhibitors
US3222291A (en) * 1962-09-11 1965-12-07 Pfaudler Permutit Inc Corrosion inhibition compositions
FR2293498A1 (fr) * 1974-12-03 1976-07-02 Chemed Corp Procede pour empecher la corrosion de metaux en contact avec un liquide aqueux, a base d'azote et de composes du phosphore et compositions utilisees dans ce but
FR2370783A1 (fr) * 1976-11-10 1978-06-09 Ciba Geigy Ag Inhibiteurs de corrosion et agents detartrants a base de polyphosphates
US4172032A (en) * 1976-10-15 1979-10-23 Nalco Chemical Company Polyphosphate-based industrial cooling water treatment
US4240925A (en) * 1978-08-02 1980-12-23 Petrolite Corporation Inhibition of pitting corrosion
EP0039314A1 (fr) * 1980-04-30 1981-11-04 Sandoz Ag Utilisation de diesters de l'acide phosphorique comme inhibiteurs de corrosion
US4351796A (en) * 1980-02-25 1982-09-28 Ciba-Geigy Corporation Method for scale control
US4406811A (en) * 1980-01-16 1983-09-27 Nalco Chemical Company Composition and method for controlling corrosion in aqueous systems
JPS58164792A (ja) * 1982-03-23 1983-09-29 Otsuka Chem Co Ltd アルミエンジン用腐食防止液
US4409121A (en) * 1980-07-21 1983-10-11 Uop Inc. Corrosion inhibitors

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1065995A (en) * 1963-12-06 1967-04-19 Geigy Uk Ltd Benzotriazoles and their production
US3502587A (en) * 1966-10-06 1970-03-24 Nalco Chemical Co Scale inhibiting compositions
US3580855A (en) * 1969-04-09 1971-05-25 Rohm & Haas Process for inhibition of scale and corrosion using a polyfunctional phosphated polyol ester having at least 75% primary phosphate ester groups
US3803049A (en) * 1971-06-14 1974-04-09 Sherwin Williams Co Benzotriazole and tolyltriazole mixtures
US3751372A (en) * 1971-06-18 1973-08-07 Hercules Inc Scale and corrosion control in circulating water using polyphosphates and organophonic acids
US3852213A (en) * 1972-01-12 1974-12-03 Gaf Corp Chelating compositions and detergent compositions pertaining to same
US3791855A (en) * 1973-03-09 1974-02-12 C Korpics Vapor phase corrosion inhibitor containing benzotriazole and tolyltriazole mixtures
US3985503A (en) * 1975-03-17 1976-10-12 The Sherwin-Williams Company Process for inhibiting metal corrosion
DK127378A (da) * 1977-03-28 1978-09-29 Saarberg Hoelter Fremgangsmaade til forhindring af belaegninger paa overflader som er i kontakt med vandige vaesker indeholdende til udkrystallisation tilboejelige stoffer
JPS5456041A (en) * 1977-10-01 1979-05-04 Otsuka Chem Co Ltd Metal corrosion preventing composition
CA1159246A (fr) * 1980-07-21 1983-12-27 Edwin J. Latos Produits anticorrosion
US4744950A (en) * 1984-06-26 1988-05-17 Betz Laboratories, Inc. Method of inhibiting the corrosion of copper in aqueous mediums
NZ212126A (en) * 1984-06-26 1988-05-30 Betz Int Copper-corrosion inhibitor composition and use in water cooling systems
US4675158A (en) * 1985-07-30 1987-06-23 Calgon Corporation Mercaptobenzothiazole and tolyltriazole corrosion inhibiting compositions
US4873139A (en) * 1988-03-29 1989-10-10 Minnesota Mining And Manufacturing Company Corrosion resistant silver and copper surfaces

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB771943A (en) * 1954-05-12 1957-04-10 Albright & Wilson Compositions for inhibiting corrosion of both cuprous and ferrous metals by aqueous solutions
GB865192A (en) * 1956-07-27 1961-04-12 Albright & Wilson Mfg Ltd Improvements in or relating to corrosion inhibitors
US3222291A (en) * 1962-09-11 1965-12-07 Pfaudler Permutit Inc Corrosion inhibition compositions
FR2293498A1 (fr) * 1974-12-03 1976-07-02 Chemed Corp Procede pour empecher la corrosion de metaux en contact avec un liquide aqueux, a base d'azote et de composes du phosphore et compositions utilisees dans ce but
US4172032A (en) * 1976-10-15 1979-10-23 Nalco Chemical Company Polyphosphate-based industrial cooling water treatment
FR2370783A1 (fr) * 1976-11-10 1978-06-09 Ciba Geigy Ag Inhibiteurs de corrosion et agents detartrants a base de polyphosphates
US4240925A (en) * 1978-08-02 1980-12-23 Petrolite Corporation Inhibition of pitting corrosion
US4406811A (en) * 1980-01-16 1983-09-27 Nalco Chemical Company Composition and method for controlling corrosion in aqueous systems
US4351796A (en) * 1980-02-25 1982-09-28 Ciba-Geigy Corporation Method for scale control
EP0039314A1 (fr) * 1980-04-30 1981-11-04 Sandoz Ag Utilisation de diesters de l'acide phosphorique comme inhibiteurs de corrosion
US4409121A (en) * 1980-07-21 1983-10-11 Uop Inc. Corrosion inhibitors
JPS58164792A (ja) * 1982-03-23 1983-09-29 Otsuka Chem Co Ltd アルミエンジン用腐食防止液

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 7, no. 285 (C - 201)<1430> 20 December 1983 (1983-12-20) *

Also Published As

Publication number Publication date
KR920008218A (ko) 1992-05-27
JP2736293B2 (ja) 1998-04-02
DE69124057D1 (de) 1997-02-20
EP0481667B1 (fr) 1997-01-08
AU639835B2 (en) 1993-08-05
CA2053157A1 (fr) 1992-04-16
AU8582491A (en) 1992-04-16
DE69124057T2 (de) 1997-04-17
US5141675A (en) 1992-08-25
JPH0586488A (ja) 1993-04-06
ATE147444T1 (de) 1997-01-15
EP0481667A2 (fr) 1992-04-22

Similar Documents

Publication Publication Date Title
EP0481667A3 (fr)
EP0478247A3 (en) Alkoxybenzotriazole compositions and the use thereof as copper and copper alloy corrosion inhibitors
AU639572B2 (en) Novel alkylbenzotriazole compositions and the use thereof as copper and copper alloy corrosion inhibitors
ES2137836A1 (es) Composicion de recubrimiento inhibidora de corrosion para metales.
ES458602A1 (es) Procedimiento para evitar la corrosion de metales en contac-to con un liquido acuoso.
AU7915491A (en) Phenyl mercaptotetrazole/tolyltriazole corrosion inhibiting compositions
SE7902301L (sv) Anti-korrosionskomposition
EP0739400A4 (fr) FLUIDE de tranfert de chaleur non-aqueux
DE59800864D1 (de) Niedrigviskose kühlsolen mit verbessertem korrosionsschutz
DE3065289D1 (en) Use of 1,2,4-triazole derivatives as corrosion inhibitors for non ferrous metals
DE59603374D1 (de) Gefrierschutzmittel
CA2335160A1 (fr) Procedes anticorrosion utilisant des isomeres de chloro-methylbenzotriazole
GB2021628A (en) Antifreeze Composition
AU636343B2 (en) Novel copper and copper alloy corrosion inhibitors
CA2081727A1 (fr) Diphosphonates en tant qu&#39;inhibiteurs de corrosion pour antigels et liquides de refroidissement, et autres fluides fonctionnels
GB1385888A (en) Additives for heat-exchange systems
EP0354746A3 (fr) Revêtement de protection pour circuits électriques ou électroniques
JPS57164987A (en) Anticorrosive for copper
JPS5692998A (en) Antiseptic and water-soluble cutting oil
Clubley Corrosion inhibiting composition
MD980158A (en) Solution for conservation of steam boilers interior surface
CA2238082A1 (fr) Methodes pour prevenir la corrosion en utilisant des halo-benzotrialzoles
Erukhimovich et al. An Oil-Soluble Combined Corrosion Inhibitor, NG-110 N, for External Conservation
Kozlov Latest Tendencies in the Development and Use of Corrosion Inhibition for Water-Cooled Systems
BG49557A1 (en) Inhibitor for protection from corrosion of iron and steel in h2so4 and hcl envirument

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: CALGON CORPORATION

17P Request for examination filed

Effective date: 19940802

17Q First examination report despatched

Effective date: 19950405

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 19970108

Ref country code: AT

Effective date: 19970108

Ref country code: CH

Effective date: 19970108

Ref country code: DK

Effective date: 19970108

Ref country code: LI

Effective date: 19970108

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19970108

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19970108

REF Corresponds to:

Ref document number: 147444

Country of ref document: AT

Date of ref document: 19970115

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

ET Fr: translation filed
REF Corresponds to:

Ref document number: 69124057

Country of ref document: DE

Date of ref document: 19970220

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19970408

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19971211

Year of fee payment: 7

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19981009

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20020918

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20030919

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20031001

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20031125

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20031201

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040630

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041009

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041031

BERE Be: lapsed

Owner name: *CALGON CORP.

Effective date: 20041031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050503

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20041009

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20050501

BERE Be: lapsed

Owner name: *CALGON CORP.

Effective date: 20041031